Entanglement of Two Qubits Mediated by One-Dimensional Plasmonic Waveguides
Alejandro González-Tudela, Diego Martín-Cano, Esteban Moreno, Luis Martín-Moreno, C. Tejedor, Francisco José García-Vidal · Physical Review Letters · 2011
We investigate qubit-qubit entanglement mediated by plasmons supported by one-dimensional waveguides. We explore both the situation of spontaneous formation of entanglement from an unentangled state and the emergence of driven steady-state entanglement under continuous pumping. In both cases, we show that large values for the concurrence are attainable for qubit-qubit distances larger than the operating wavelength by using plasmonic waveguides that are currently available.